Aquila® Hops

AromaAlpha 6.7 - 8.9%United States

Developed in the 1970s at Parma, Idaho, by Dr. Robert R. Romanko, Aquila® (USDA Accession No. 21222) is an elusive American cultivar bred as an open-pollinated seedling of a Brewer's Gold mother plant. This variety initially captured major commercial momentum in the late 1980s, scaling up to 100-acre testing fields across Washington state by 1988 to undergo rigorous, plant-scale brewing evaluations for industry giant Anheuser-Busch. Although the United States Department of Agriculture officially released the hop to the public in 1994, its commercial lifespan was incredibly short-lived. A combination of subpar storage stability, high cohumulone levels, and a sudden loss of interest from Anheuser-Busch caused production to grind to a halt and the hop to be entirely discontinued by 1996. Today, Aquila® exists primarily as a fascinating historical artifact within public germplasm banks, standing as a relic of late-20th-century Pacific Northwest brewing trials.

The sensory blueprint of Aquila® delivers a rustic, old-school profile that anchors a traditional brew with an unpretentious, clean herbal focus. The aromatic footprint leads with a mild, comforting core of fresh-cut field grass, dried wildflowers, and damp, clean earth. This subtle botanical foundation is cleanly punctuated by a crisp, restrained wave of bitter orange peel and warm woody spice, keeping the overall presentation thoroughly grounded in classic, noble-adjacent characteristics. Because its essential oils completely lack the flashy tropical, juicy, or heavy sweet fruit notes found in modern craft hybrids, it provides a very straightforward and nostalgic presence. While its fragile storage qualities and elevated cohumulone composition demand strict freshness to avoid a harsh, biting finish, a well-preserved sample offers a beautifully authentic glimpse into the classic bittering and aromatic frameworks of vintage macro lagers.

Substitution Tip

If you can't find Aquila, the best alternatives are Brewer's Gold, Cluster, or Galena.

At A Glance

ProfileField Grass, Dried Wildflowers, Bitter Orange Peel, Woody Spice, Damp Earth
PurposeAroma
Alpha Acid6.7 - 8.9%
SubstitutesBrewer's Gold, Cluster, Galena
Pairs withCluster (to heavily amplify the deeply rustic/woodsy/and beautifully damp-earth baseline while providing an authentic/old-school American macro-lager foundational layer), Galena (to bridge the gap back to heavy mid-tier bittering profiles/introducing a punchy/crisp/and clean citrus-pine depth that balances Aquila's native herbal notes), Northern Brewer (to seamlessly lock into the authentic/soft/and woody mint characteristics native to classic European-derived designs while bolstering the overall kettle structure)
Beer StylesBelgian Farmhouse Ale, Historic American Lager, Cream Ale, Traditional Porter

General Information

Country
United States
Alias
USDA 21222 (Experimental selection designation: I 33-6)
Storage Stability
Retains 40% alpha acid

Brewing Chemistry (Acids & Oils)

Alpha Acid
6.7 - 8.9%
Beta Acid
4.1 - 4.9%
Cohumulone
46.0%
Total Oil
1.4 ml/100g
Myrcene
62.0 - 65.5%
Humulene
1.8 - 2.0%
Caryophyllene
4.5 - 5.0%
Farnesene
2.2 - 3.0%

Growth & Cultivation

Yield
2,120 lbs/acre
Maturity
Medium Late to Late Season
Resistant
Verticillium Wilt
Tolerant
Downy Mildew (Moderate)
Growth Rate
Very High / Very Good Vigor
Sex
Female
Leaf Color
Light Green (Visually identical to its parent line, Brewer's Gold).
Side Arm Length
20" - 30" (Medium)

Discovery Tags

Usage

Last Updated
  • 2026-06-27 13:48:26